w4.dk

📜 Historical scan 2026-06-26 09:01:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

w4.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 23 April 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 161.97.125.9 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mail.w4.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 230ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 252ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
161.97.125.9	3600s	vmi2570519.contaboserver.net	AS51167	Contabo GmbH	161.97.64.0/18	🇫🇷 France	Lauterbourg

📧 MX Records#

1 records 247ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.w4.dk	207.180.231.63	vmi2570520.contaboserver.net	AS51167 Contabo GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 391ms

TXT Record
google-site-verification=rP1w2YbjO3jyuP5OOSg4ltbiqcHeSUGG25kA6v3UUzM
v=spf1 a mx ip4:207.180.231.63 -all

✉️ SPF#

Policy	Record (w4.dk)
-all (hard fail)	v=spf1 a mx ip4:207.180.231.63 -all

📨 DMARC#

Policy	Record (_dmarc.w4.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:admin@w4.dk; ruf=mailto:admin@w4.dk; adkim=r; aspf=r;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 12:41:22

www	161.97.125.9 (AS51167) (address records, no CNAME)
www vs bare domain	Same network w4.dk: 161.97.125.9 (AS51167) www.w4.dk: 161.97.125.9 (AS51167)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	RSA · ~4096 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

352ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

242ms

Field	Value
Serial	2025120201
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 15:18:56

Field	Value
Registrar	Simply.com A/S
Registered	2018-04-23
Expires	2027-04-30 (191d)

📋 WHOIS#

⏱️ Lookup Timing#

230ms

252ms

247ms

AAAA

238ms

TXT

391ms

CAA

245ms

HTTPS

202ms

TLSA

179ms

SOA

242ms

MTA-STS

260ms

DNSSEC

352ms

SRV

240ms

Total

1889ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 12:41:22	627ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 19:59:58	598ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 19:49:01	693ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-26 09:01:26 shown	1889ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-25 14:25:39	2681ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 23:01:34	921ms	4 NS 1 A 1 MX	🔒 Secure